1 September 1995 Progress toward a photon-counting intensified CID detector
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Abstract
A photon-counting intensified charge injection device (CID) detector is currently in development at the Laboratory for Astronomy and Solar Physics at the Goddard Space Flight Center. Analogous microchannel-plate-intensified CCD detectors have achieved impressive spatial resolution performance in photon-counting operation. Such detectors suffer, however, from a severe limitation on local dynamic range; local event rates must be kept low in order to minimize event overlap at the frame rates achievable for reading out a full CCD. By utilizing a random access CID for the readout stage, we plan to avoid this severe local count rate limitation by virtue of the addressable (rather than serial) readout capability of such a device. Different portions of the detector field can be framed at different rates, as appropriate to the brightness distribution of the scene, maximizing the local count rate limit for a given pixel read rate and event processing capability. A high spatial resolution, high count rate photon counting detector of this type is of interest in a number of applications in space and ground- based astronomy. In this report, we present: (1) the advantages and applications of this kind of detector, (2) remarks on the suitability of different CID architectures, (3) our system design concept, and (4) the status and plans for our fabrication and testing efforts.
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Randy A. Kimble, Randy A. Kimble, Peter C. Chen, Peter C. Chen, J. Patrick Haas, J. Patrick Haas, Timothy J. Norton, Timothy J. Norton, Leslie J. Payne, Leslie J. Payne, Joseph Carbone, Joseph Carbone, Massimiliano Corba, Massimiliano Corba, } "Progress toward a photon-counting intensified CID detector", Proc. SPIE 2518, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI, (1 September 1995); doi: 10.1117/12.218392; https://doi.org/10.1117/12.218392
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